Combined type-writing and computing machine.



B. C. STICKNEY.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. 1, WM. 1,183,602. Patented may16, 1916.

5 SHEETS-SHEET I B. C. STICKN'EYI iG-MEINEL TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. 7, 1911.

Patonted May 16, 1916.

I SHKEIS SHEEI 2 II II III WIIIIIIIII B. C. STICKNEY.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION 111w NOV. 1. 1911.

1,188,602. Patented May16, 1916.

5 SHEETS-SHEET 3.

WITNESSES: INVENTOR:

zwm

FIG. 10.

B. C. STICKNEY. COMBINED TYPE WRITING AND COMPUTING MACHINE.

I APPLICATION FILED NOV-1,1911- 1,183,602. Patented May16,1916.

5 $HEETS-$HEET 5- INVENTOR E S; M

37GB, BY MESNE ASSIGLL C21 3533; YORK 25. Y

Cal $313K T1 PE-VRITING A231) GOMPU'TZNG AiACHlNE 1 153 8 f5 Specification of letters Patent. Paig fi d m 16 1915.

, nuwar for effecting: $1 I. BiTRNUf-Jd {I S'i1 IH.-- pius 0n ihese "in! States, ros n m mi of Union 1.1T i,

wanted CL ihtm-stien; anti ihe starting mi wheels may sS-art the tensi =13, lotion, and. the mmmuii 3 the te-iiiycarrying trains 11:11 aim he rm m borrow tens.

- in Combined in um i of H14 invention, the bars ffi'iiiCill'fiGS t 21119: We provided \1 nick he fni 'ivatmn. in. iawsz and upper "(2115, WE. 11 are connected to 50 "at in, Hue furwmd m0- il'evtei l I 'ihe genera 0;)-

I? manm ig ihe pinions and l u 1 A 7Q Hnmxm N. 5 \L, and A shi'imhie (3mm? gn' fjrvided for br ng; miss in ilm ps2 Frederick min u? either the iOWA?! marks or the up A. Hurt E's. Pvmifi m 1 I r I m; and fliers: also provid-sui a back 2Q 1908. "7111a im'emum ,ag'ipiicaiblc gzwiilw for re .'a:ii-;in;i the dirt-Mien 0% mm (iii-er who. 7 Lion, at flu; (UUHHOH driver MI Th s prmi' {3-20 0 0,4? the im'nniiam ta ivy; trains when required. U602; said c0mpruvide aim RE, impsm'm} and incxpen- 2mm iii-hm tiivi'e are winced not only the iw means For "pvi'fiirininy sitifiirwtinn. Hslmi \Qi :yf spinal; ziriangi d sectors 01' 25 In ll'ltllfiliifzi 1, 15th: @105. X ll'gatwt and ievih for driving the teiis-L-uri ing trains, appiimiimn ti (Hui whmzh have uiing; out :fiso anvil 1-9: 59!: of secb'ns 01' teeth these 'Diim winch u't vermin iieiiscarrying last being nisu spirally arranged, but in the rains: and :a' it operation of YLYL'EQQ (Him-hon The cmnumn driver n01- are the din? midi? funds in Silih position that if it turns 5m 110 warii; mm iiieut'imi. um: 50b of segments is M :i mated. bmug ht into use fm' filming the tens-carr d mm d am. Eng trains: in Sin: I ion to add; whiie if 1 "*1 dziwi' in the (apposite direc 5.210 of scqmmits brought '7 g the tens-carrying m: buiz'mi'g it being under 00d that u an the eompletima of the uperaon of eitim 542?; of gz'ne'nts, the remaining using phced et wiii ea idly past all the tens-carry- LB cpzrw ing trains. slum when any s ment moves its mfnpieted train, it kraves the same clear, so that it acted cannut Us engagvd by the companion segfimn and znem: each 'tens canvm" train havm amuthe tens-carry the rota 11 rrys showing the present improvements applied thereto. Fig. 2 is a plan of a portion of the dog and jack mechanism, whereby the carriageof the typewriter controls or selects the denomination of the computing wheel which is to be actuated or controlled. Fig.

3 is a sectional elevation of a clutch between the common driver of the tens-carrying mechanism and the pinion, whereby said driver is revolved; ,said clutch-permitting said pinion to be revolved idly by the gen.- eral operator duringthe forward stroke of the latter, but causing it to rotate during the return stroke of the general operator. Fig. 4 is a sectional side elevation of a shift- :able lever or-handle, and means connected thereto for setting the machine for either [addition orsubtraction, the parts being shown in addition positions. Fig. 5 is a sectional plan of the back-gearing or clutchmechanism, for altering the direction of rotation of the tens-carrying driver. Fig. 6

' shows the Fig. 4 handle shifted back toset machine being set for adding. Fig. 10 is a plan of the computing devices. Fig. 11 is a plan of the computing head and the tenscarrying trains. Fig. 12 illustrates the manner in which a segment clears the mutilated pinion of the tens-carrying train, so that it i will notbe affected by subsequent revolution of the same segment, unless in the meantime said pinion is started by a starting tooth on the dial wheel. Fig. 13 is a similar view,

illustrating the subtraction operation, the

parts at such operation turning in the directions shown by the arrows. Fig. 14 is. a perspective View of an arbor on which the computing wheels are mounted, and. by which they are advanced to zero positions. Fig. 14: is a perspective showing the sight open- "ing and the rack slots in the casing. Fig.

15 is a sectional view showing the same ar-; bor, shown in Fig. 14 with means for driving and locking the same. Fig. 16 is a diagram illustrating the relation between the computing wheel pinion and its double rack; the parts being set for addition. Fig. 17 is :a sectional view of the parts seen at Fig. 16. Figs. 18 to 25 inclusive are detail views, on a large scale, of the adding and subtracting segments. Fig. 26 illustrates the relation between the computing wheels, the tens-carrying trains, and the segments for causing the latter to add and-subtract; this view showing the assemblage of the segments from Fi s. 18 to 25.

n said machine, alphabet keys 1. and numeral keys 2 depress levers. 3 to operate bell cranks 4, to swing type bars 5 up to strike against the front of a platen 6, which is mounted on a carriage 7, propelled by a spring barrel 8 and controlled by an escape ment wheel 9 and dogs 10, the latter operated' by a universal bar 11 mounted on a reciprocating frame 12, which is carried at its rear end by idle links 13; said universal bar being operated by heels 14 on the type bars. Said keys have stems 15 to depress arms 16 on rock shafts 17, which form parts of linkages 18.; said linkages also including horizontal bars 19, which extend horizontally across the machine to enable the keys to depress any of a nest of computation pins 20. Said pins 20 are carried upon bars 21,which operate the dial wheels; there being one bar 21 for each denomination.

The carriage of the typewriter selects or determines the denomination in which computing is to be done upon the depression of .nny numeral key. For this purpose, the cari'iag'e carries a dog 22 to engage and cam up or lift any of a series of jacks 23, which are pivoted at 24, and at their rear ends depress rods 25, the latter connected by levers 26 to linkages 27 which lift the rear ends of the bars 21; each jack 23 being connected with its own bar 21, so that the position of the carriage 7 determines which one of said bars 21 shall lie in elevated position at the depression of any numeral key 2. At their forward ends, the bars 21 have racks 28 to engage pinions 29, which are fixed to their respective dial wheels 30, Figs. 9, 16 and 17.

The actuation of the rack-bars 21 is the 37. The bar 36, as usual, engages any of the pins 20 which have been depressed by the keys; and accordingly the racks are driven forward and the computing wheels rotated. The return movement of the general operator may be caused or assisted by a spring 38, Fig. 1; and the cross bar 37 of the general operator may engage lugs 39 pendent from the bars 21, to drive the latter backward to normal positions; all the dial wheels remaining'motionless while this is done, being held by spring detents 40.

lso carried-upon the forward end of each 7 )ar 21 is arack 41 to be used for subtrac- 'tion; this rack being parallel with the rack 28 and overlying the pinion 29, but adapted to drop into engagement with said pinion when the rack 28 drops out of engagement, so as to turn the pinion in reverse direction at the forward stroke of the bar 21 effected in, the forward stroke ef the general eperetor bar 36. The racks may be connected in any suitable way, for instance by'rneens of a yoke 42, which may be integral with the racks. v

Each addition rack 28 is held up at Figs. 1 and 9, by means (if an individual yielding arm &3. These armsare pi oted at their forward ends; at all to ears l5, projecting inwardly from the framewerk; the ears and lugs being plzired between the racks; and the -16 ring longitudinal slees 7 to a tconiniodete the forward niereieente of the yoke and reel-1s. The arms are held up by spring ling s 48 projecting upwardly :eir each of said ling i lower end 50 of a or fer-1r on the adjacent arm 43 near i o pivot. Al; The end of each arm 43 is a Wrist 51 working in horizontal slot 52 extending reerwzirrliy of the adj-- from transver e horizontal bearing on lhe cent her 21, It will i'lllflS be seen that the spring fingers -18 hold lhe re u in mesh With the pinio te enable, fie reel-(s te :aclrencethe pinto "or iuldilien.

The bar -49 is iehlefrom the Fig 9 position to the l ig, .52 m to neutralize the eileet of the springs 48 thereon by bringing rlie same in ole: l'CQlli-CI. "position, and

else i shiftsp )3 r re the deerl-oentrr sitions ig. 9 co the upper ends 54 of cross pieces on the arms i3, to swing said arms down and carry the lower racks our. of engagenienl with the pinions 29 and the upper lafili. 41 mm engagement therewith so tlm'z the direction of rem t-ion of the pinions reversed at the "forward strokes (if the harr During the reriirn a l-relies 0f the rack bars, the raclis er the racks ll may slip idly ever the teeth of the pinion 29, said racks having beveled or ratchet shaped teeth, le permit such slipping movement; but preferably both rziel' are automatically disengaged during the return movements of the. bars El to :lacilite'le their Increments, and minimize the melee. For this purpose, an automatic shifter in the form of a disk 54 fixed upon 11 square shaft 55, which is given full revelufl ion (lurin l ke return strelae ef the general operator 2, in a manner presently ie be explained. in said disk is a notch 5?. which is normally occupied by aroll or rider 5?, l -ig. 8, upon the end of an arm 53, the roll being pressed in the notch by a spring In he Fig. 8 p0sition, the parts are idle; hut when the shaft 55 is revolved, the roll forced outof hen-re turned to bring the s 3rings l8 53 $0 pressure eqlgelizing positions upon all the cross pieces 50, as seen at Fig: 7, so tllal; the arms 13 are all brought to horizontal midway p0 lens thus disengaging ell the reeks ire-1n the pinions 2i. Upon the complet on of the rotation of the disk 5- the spring 59 releases the shaft- 33 from the control ef the arm 60, and said shaft is caused to resume its initial position by means of ii Boring 65, Fig. l or Fig. (i with either the racks ill or the racks in mesh with the pinions 29.

Tliiisepring is connecied .70 a shifting handle or lever 66 which may extend for- Werdly and upwardly through the casing of the machine, for setting the machine to either add or whiraet; the addition position of said lever being seen at Figs. 4 and 9. and the subfiraotion p eition thereof at 6. The swing 65 double acting to hold. the lever in either Fig. -l position or 6 pesition. Upon the shaft 63 is an arm ()7, which carries a pin 68 engaging a $10 69 in the lever 66, that the lever 58 have e greater throw from the Fig. to the Fig. 8 position, than is given to the arm 67 and shaft 63: whereby the rocking of said shaft may be effected, as aforesaid by the fill dish 54 without swinging lever 56 and the double-acting spring 65 09 near the deadevnter position.

A: Fig.5. 6. it w' l be seen that. the springs are effective to hold the arms 43 down, and hence bring the racks all into mesh and the racks 28 out of mesh with the cone pining pinions 29; while the springs 48 press idly or neetrziliy tmvard the pivots 44. Thus the position of the shifting handle 66 controls th positions of all the opposing racks ZSend .1, and thus determines the setting of theee devices for either eddition or suhtrzieti-i n. It ie not necessary in all ease? to employ the zuil'onintie devices 54, 60, elm, rm in smne eases the reeks 28 or 1 may be dragged lmolr over the leeeh of the stationary pinions 29, their ratchet shape permitting such movement.

The tens-enrrringz trains include teeth 70 upon the dial Wheels 30, for starting or initiating the movements of pinions 71 which are loosely mounted upon a shaft 72, each pinion being rigidly connected to a three toothed Wheel 73, which adapted at each tens-earning operation te revolve inf-o being illustrated.

pose connected to said general operator 32, to be stationary during the advance stroke of said general operator, while the dial wheels are rotated, and to rotate during the return stroke of said general operator after the racks28 or 41 have ceased to affect the dial wheels. 7

In performing addition, the shaft 55 and other parts turn in the direction of the ar rows atFig. 26. At said figure, it will be understood that the dial wheel 30 shows "9 at the sight hole, Fig; 9. In advancing from 9 to 0, the starting tooth advances from the full line to the dotted line position at Fig. 26, during such movement engaging one of the teeth of the pinion 71 and rotating the same one ninth of a revolution, and then moving to the dotted line position clear of said pinion; the pinion being retained by the usual detent 75, Fig. 1,

which is usually connected by a spring 7 6 to the detent 40 of the dial wheel. This spring detent 75 first opposes and then assists the starting tooth 70 in turning the pinion 71, and may bring the latter to position after it is disengaged from tooth 70. Three equidistant teeth 76 of the pinion 71. are cut away, so as to be unengageable by the segments or teeth 77 fixed upon said shaft 55, as at Fig. 26; although nine teeth on said pinion 71 are engageable by said detent 75. Each pinion has a peripheral groove 71, Fig. 11, to give clearance for rack 41 in the lowermost position of the latter. The movement of the pinion effected by the tooth 70 in moving from the full line to the dotted line position at Fig. 26 advances one of the six broad teeth of the pinion 71 into position to be engaged by the segment 77 upon the next movement of the shaft 55, as usual, and by this means, the pinion 71 is given two-ninths of a revolution, thus completing its tens-carrying movement of onethird of a revolution, and causing one of the teeth of wheel 78 to move into engagement with one of the teeth of wheel 74 of next higher denomination, zr l advance the latter one point or a tenth of a revolution together with its dial wheel 30. There is one of the segments '77"f,or each tens-carrying train: eight of said segments The movement of the shaft and segments is communicated from one of the racks 32 of the general operator by means of an idle pinion '78, Figs. 1 and 9, said pinions 78 meshing with a pinion 79, which rotates baclrwardly and forwardly at the reciprocation of the rack or general operator 32; and a clutch is em ployed for connecting the pinions 79 to the shaft 55, so that said shaft shall make a full revolution during the return stroke of the general operator 32. This clutch comprises a spring-pressed ball or roll 80, Fig. 3, occupying a recess 81 in a hub .82 loose on shaft 55, the end of which is shown as c lindrical, at Fig. 5; said spring pressing t e ball into a recess'i-l i in the pinion 79, so that when said pinion moves to the right or clockwise at Fig. 3, it carries the hub 82 with it.

Said hub 82 which as previously stated is looseaon shaft 55 is formed upon a bevel pinion 84, which forms part of a reversing gear,.whcreby the shaft 55 may be rotated in the opposite direction from that indicated by the arrow at Fig. 26, whenever it is necessary to perform subtraction. Said bevel pinion 84 meshes with an idle bevel pinion 85 journaled on a stud 86 carried by a fixed arm 87; and pinion 85 meshes with a bevel pinion 88 also loose upon the shaft 55.

inions 84 and 88 revolve in opposite directions; and either one of them ma be connected to the shaft 55 by iieans o a double clutch mechanism. The pinions 84 and 88 carry interior clutch members 89 and 90, and a double ended clutch member 91 is splined at 92 to the shaft 55, and is movable by a lever 93 (having a pin 94 to engage a peripheral groove 95 in the double clutch 91) into engagement with either clutch member 89 or 90. At Fig. 5 the pinion S4, whose hub 82 is clutched to driving pinion 79, as at Fig. 3, is shown connected to the clutch 9.1., and hence the shaft must turn said pinion 84, thus rotating the shaft 5 in the direction shown by the arrow at 26, to carry tens at the operation of addition. I

W hen, however, the lever 93 moved to carry the double clutch 91 away from pinion 89, and into mesh with pinion 99, the shaft 55 is rotated in the opposite direction, and this is done at the subtraction operation, in order to cause the trains 71, 73 to borrow og tens.

At the subtraction operation, the wheels 30 move to the left or in the direction opposite to that shown by the arrow in Fig. 26; and assuming that the wheel shows 0 at the sight opening, the tooth 70 will be in the dotted line position at Fig. 26, and while the wheel moves from 0 to 9, said tooth will engage pinion 71, and rotate the same cloclowiso or toward the right, so that one of the six broad teeth thereon will move into the path of a segment or tooth 96 fixed on the shaft 55, and said segment 96 will rotate toward the left or counter-clockwise, and drive the pinion 71 in the opposite direction from that shown by the arrow, so that one of the teeth on wheel '73 will engage the wheel '74 of next higher denomination, and more the same reversely or in subtraction direction for one tenth of a revolution, thus 125 borrowing ten therefrom.

It will be seen that the first or unit segments 7'? and 96 may conveniently be formed in one piece as at Fig. 18; and the remaining segments 77 and 96 may be disposed in 1.80

joined pah's an augnpnsii' ifiining Um Z1: waved therufrum v The segrn along the m it, J15 trains mm m one, individua ("n :phwtad be 2 w sogn'lcnfs 9(3 similar plugnma (we? in Mm 0mm;

spizruliy (ii pm 11 wt tfi mnswarrying m Whflilb}? mg ogwrziticm mule. The ange 7121; y for a a wind extemhng how- (iizcctkm s0 thm, tans may be 'i'vm'mwerd by A? mum} befem the next hkg her mm 31 u m'zlied.

Each Sub Inching: avgmwnt mfi-ipur may be wnven'sently 1m mun? piece: of sheet meta; 215- mn(ing mlfiitim; a 2i; sm'h Qua-1w the doubh sergment w: spun an segments NEH haw the shapvs flmstmte d m Figs. 18 tn .3 The Angie svgn'zent 9'5, Fig. may mnvenieniia my m summon to m simwn;

- up mm unasn m slave time the (la x mm dial whew arbor MW 212 2m detmm muh ise far a The a y-mwm 1 zen; Em $01 in Bar; (4*: .11

from when auburn-1. m'm'idm! .21m; 12mm Y T mg 21 party tation said Wheels in subtraction direction. it Will be is set for subtrzn'titm, the. Wheels cannot be set to zero by said zero mechanism; but that when the machine is set for addition, the were mechanism becomes potent or effective.

Atthe endwise displacement of arbor 108, a collar 131 thereon carries the pinion 11 C with it. and. a flange 132 on the pinion may be employed to carry the. forward end of the rack 115 idly sidcwiso; the rack being confined laterally between 132 and 114, and suitably supported on a rest 133 for this sidcvvise sliding movement.

Variations may be resorted to within the scope of the invention, and portions of the improvenients may be used Without others.

Having thus described my invention, I claim:

1. The combination with computing x ions, of bars carrying opposed racks, and g "ling arms shiftahle to hold either set of ilfflS in m h with the pinions, said bars having sh and said arms having means to engage said slots to shift the bars.

2. The combination with computing pinions, of bars carrying opposed racks, arms shittabie to hold either set of racks in mesh with the pinions, said arms having cue-pieces formed thereon, and spring lingers to engage said cross-pieces, said spring fi'n s being shiftable to render them either effective or ineffective to move the arms and hare.

3. The combination With computing pinions, of cars carrying opposed racks,

iiftahle to hoid either set of racks in with the pinions, said arms having pieces formed thereon, and two sets of aid cross pieces, one is in one direction, and ing them in the oppo- :et for mo .iion i combination with computing pinions, of bars carrying. opposed racks, arms shifiahle to hold either set of racks in mesh. with the pinions, said arms having (ftfiSSPlflCtS formed thereon, and spring fingers to engage said cross-pieces, said spring finge s being shiftable to. render them either eiiec vo or ineffective to move the arms and item and inclmiiing two sets, one for moving the arms in one direction, and one for mining them in the opposite direction.

The combination with computing pinions, of hars carrying opposed racks, arms shiftahle to hoid either set of racks in mesh with the pinions, said arms having cross nieces formed thereon, spring fingers to en gage said crosspieeee, said spring fingers in, aiding two sets, one for moving the arms in one direction, and one for moving them in the opposite directimi, and means for moving either set to efi'sctive position and the other set to inefl'ective position.

seen that when the machine with computing pin; ions, of bars carrying opposed racks, arms shiftable to hold either set of racks in mesh with the pinions, said arms having crosspieces formed thereon, spring fingers to en gage said cross-pieces, said spring fingers includin P two sets, one for moving the arms in one irection, and one for moving them in the opposite direction. means for moving either set to effective position and the other set to ineffective position, and means for automatically movmg the spring fingers to equalizing positions to withdraw the racks entirely from the pinions during a return stroke of the general operator.

7. The combination with computing pinions, of bars carrying opposed racks, arms shiftable to hold either set of racks in mesh with the pinions, said arms having cross pieces formed thereon, spring fingers to engage said cross-pieces, said spring fingers including two sets, one for moving the arms in one direction, and one for moving them in the opposite direction, means for moving either set to eflective position and the other set to ineffective position, a finger-piece for shifting said spring fingers, and a double acting spring connected to said finger-piece to hold it in either addition or subtraction position.

8. The combination with computing pinions, of bars carrying opposed racks, arms shiftahlo to hold either set of racks in mesh with the pinions, said arms having crosspieees formed thereon, spring fingers to en gage said cross-pieces, said s 'iring fingers including two sets, one for moving the arms in one direction, and one for moving them in the opposite direction, means for moving either set to effective position and the other set to inefl'ecti e position, a finger-piece for shifting said spring fingers having a loose connection therewith, and a. double-acting spring connected to said finger piece to hold it in either addition or subtraction position.

9. The combination with a system of com.- puting pihions, of addition and subtraction racks or operators shiftable into and out of engagement with said pinions, pivoted arms to engage said racks for shifting them, crosspieces on said arms, addition and subtraction s rings to engage said cross-pieces, a shifta le rocking bar on which said springs are carried, a eross-piece connected to said sliiftable rocking bar, an arm to engage the last named crosspiere to shift said barand springs; to neutral positions, and an arnrop erating cam connected to operate during the return or idle strokes of the racks.

10. The comhination"with a system of computing pinions, of addition and subtraction racks or operators shiftable into and out of engagement with said pinions, pivoted arms to engage said racks for shift- 6, The combination ing them, cross-pieces on said arms, addition 130 Film d iving: "(3w x'atm x. mm am "and She! to vmz'uh: maid ram Li.- mail 2 1a 193%: mid rmks im m. :mt

their wzturn Strokes.

1.1. T e. (-omimmtim; v. stomyurlng pininas, 0f addim than rzur'kr. m s 1;", out of ang ing wing; mm

ing trains for said wheeis, means to enable said wheel? to start said tons-corrymgt-rams \ithor forwardly orbackwardlgig ii driver able said general oporotor upon its roium stroke to mine said driv.- in either of two opposite (Emotions: 4

.35 Th wrohinai-iim with computing 'whmais-na Ltiixiji?) opposiibe d. rations, and

5o inning will 1th of Sons-Partying {rains s ir'mo. in "siiiher diiooiiirm by id mirth, o 1. WOY-WiliVQfi dI'ii'F'i for Cb, rho ii'uwonioot 'f said. t or either for wordiy or hack grail rowu to mom-r01 the iiirovtion of movement of s 'd computing who 9.2M! of mid powoi chii .21 driver, and fin m' 11 connected to said iontroiling moans for oporating: the some.

3 0. Ti "-imhiniiiion, a; system of '26 compuiin Wheois. of drivag; means therefor for sting aid, whee-is ziiuwi'aru iveiy in wiiou or the other to perform ion or wbtmoiioii, said driving mg s; iifi 11in with PM tion to said lffiuntiy of .Hi' returning sziiri whoois to omihzinism for rontroiiing the driving and means n inoporw in has been MH'SQ tions. to p r ilhiznction, :1 nwrh- "whoois to air-rm inmini moor-.5; for to :iiwngugo {he 'iirmtiou with :1 SYSHIH of i'onipisiingf 0021*, of shifizthia ZEKGYLZES for rotating them in opposite kiiZiNii KH'H i'o per-- f rm oiihizr i riun or fiaaiiti'm-iiom ri moi-iv ra-tvroing; mid whmr s to ZQI'O, :12: arbor on which said, Micah; mo oriioi n 1 having; hoivs therein and Hid J i im'iwron mid arbor sin-i iiiomis for moving sari e who-1 i, in,

arbor for camming the hails into the bolas in thomrbor, to permit; the wheels to rotime in subtraction direction independently of bhe balls 24%. The mmhimifion with a system of .oomputing wheels, of shiftable means for rotating them in opposite directions, to per form either addition or subtraction, a mechanism for returning whoels to Z9130, inciuding an arbor on which said whoeis are mounted having holes therein ami incib viiiual clutches between said arbor and said wheels, means for moving said arbor and- Wise to disengage the olutohefi, said clutches comprising clutching halls and sagiii'ings, and said Wheels having inclines Qii'octivv at the endwise movement of said arbor for cam ming tho bails into the holes in the arbor to permit the 'Whoois to rotate in subtraction dil'octioi'i indepomie'ntiy of the halls, a gmemi operator. shifmhio racks operahio by said general operator for turning; the Wheeie either forwardly or backwardiy, a lover for shifting said racks, and means controlled by said iovor for shifting said arbor ondwise, to roni'ior the clutches ineffective at'tho suhh'iuirtioii operation.

:35, The =i:omijziriation of a set of complating whee v iYOY' SPt pins or devices, a gel-Mai o 'icriimr to coopemta with said key" set pins to rotate mid WilQifiS to various oxtents Jotormineii h said pins, fingenpieoe, shiimhio moans connected to said. finger piece for soiling said gonna aporutor in its, fmwmm stroke, to rot said whorl either ''omvzirali or imokwarfiiy', tensworr ism twins in" mid wimzha S'flfiilllii to ma :1 n5 uvhovis to his i staid z-warryingtrains :ziiiwr i 01 ii;' or iii-1C"Wiiii}', :1 driver f r said llii-i 7 a 21:1 also vonmoiod 55o :36. The mmbinatiori of a set of pikiing whcoio; koy-s'oi. pins or devices, o gen oral operator to coihorate with said hey $0? pins to rotate Saki Wheels to various ex trots iietixrmined by said i W, o, fiDgEI QiEHQ, shiftzahle wins roniiectwi to said finger-- piece for onn'a'aiing said general oporator, in it forward stroko to rotate said wheels either forwiirriiy or hackwardiy, tons-worry *ing rains for s; R! whreis, means to enable mid whveis to mart said srarrying trains riiher iorwzsrziiy or bzuiuvmiiiy, a driver for said trains, siiifmhie nu-mos aiso con nerteii to said finger-piers. to enahio said genera] operator, upon its return stroke, to rotate said (irivor either forwardly or backwimlly, and mechanism for returning hr wheels: to zero, inoiuding 2i, shifmhle mom her and means connected to said fingoi pimre to render said shii'mbio member ineffective hon the machine is set for subtraction.

27. The combination with a system of computing wheels, of "ac-k bars for rotating said computing wheels, said rack bars having an intermediate position and two exover mechanism including for each computing wheel a pair of assisting segments lying in the same plane so that the first segmentapproaching said computing wheel may enable the carryover action.

30. The combination with a system of computing wheels, of a series of rack bars for rotating said computing wheels, said rack bars being shiftable to eflective and ineffective positions, and locking means for securing said rack bars in either their effective or ineffective position.

31. The combination with a. system of computing wheels, of rack bars for rotating said computing wheels, said rack bars having two different effective positions corresponding to the rotation of said computing wheels in opposite directions, and locking means for maintaining said rack bars in either of their effective positions.

The combination with a system of computing wheels, of a set of rack bars for actuating said computing wheels so as to run up numbers thereon, said rackbars having two different effective positions corresponding to the rotation of said computing wheels in opposite directions and also having a neutral position in which they are effective, locking means for securing said rack bars in either of their effective positions, and retaining means for maintaining said rack bars in their neutral position.

33. The combination with a system of computing wheels, of a series of rack bars for rotating said computing wheels either forwardly or backwardly during the movement of said racks in one direction, a rotary carry-over mechanism extending from wheel to wheel for positively driving the next higher computing wheel through a fraction of a revolution when the next lower com puting wheel has been rotated through a complete cycle in either direction, means for rotating said carry-over mechanism, during the movement of said racks in the other direction, and means for reversing the direction of rotation of said carry-over mechanism.

34. An assisting gear comprising ashaft with a series of segment arms secured on said shaft and formed in. integral pairs, the arms of each pair being arranged, a spiral series with the corresponding arms of the other pairs, the spiral formed by one set of arms coiling in one direction and the spiral formed by the other set of arms coiling in the opposite direction.

The combination with a system of computing wheels, of a. set of rack bars for engaging said computing wheels in dii'lerent manners to rotate the in opposite directions. a carryover mechanism for said computing wheels, a clutch for varying direction of rotation of said carry-over mechanism, and shifting means for concomitantly adjusting the position of said clutch and the position of said rack bars.

36. The combination with a system of computing wheels, of a set of rack bars for engaging said computing wheels in a p1urality of manners to vary the character 01f rotation of said computing wheels, a carryover mechanism for said computing wheels, a reversible gearing for determining the di-v rection of rotation of said carry-over mechanism, a zero mechanism forreturning said Wheels to zero, and adjusting means for concomitantly determining the position of said rack bars, the direction of drive of said carryover mechanism through Said reversible gearing, and the effectiveness of said zero mechanism.

37. The combination with a system of computing wheels, of rack bars arranged to rotate said computing wheels in opposite directions hy engaging said computing wheels in different manners, a zero mecha nism' for returning said computing wheels to zero. and an adjusting means for concomitantly varying the character of engagement of said racks with said computing wheels and rendering said zeromechanism inefl'ective.

38. The combination with a series of computing wheels, of a series of racks for driving said computing wheels either in. one direction or the other for addition or sub traction, said racks having an advancing and a returning movement for the operation of running up a computation, and a tens-carrying mechanism for effecting carryover operations between computing wheels. said tens-carrying mechanism being actuated solely during the return stroke of said racks whether Said racks are rotating said-computing wheels in one direction or the other for addition or subtraction.

39. The combination with a series of omputing wheels, of a. series of racks for riving said computing wheels either in one di rection-or the other for addition or sub traction, said racks having an advancing and a returning movement for each running of said rack bars.

up of computaiion Wheels the actual ing whee by said ZZ'iCi' whether in one direction or ihfi other, taking piace always in the ad ani 2g momma) of said racks, and a tens-carrying mec'izaulsm ffJI 'i'fectmg a caz ry0ver operatiur betwezar 24311- on said. computipq rent-10w: sf szud sompu mg ivheek I 11g xnschal aging alw Le rain? 1 swoka gacks Whei i :02

40. The esmbinatian computing Heels, oi for rotating said. compu rack barshaving 2*- positicm and two E5. one for performing and the Other f0? psrmrimng thereon a general eperator sad rack bars an i manning Saad rack bars being ah ways active pasitions (i-Bring movement. thereof, 50 t form additicn 0r subtrumm and cans actinp' i at:

said rack bar-:5 mm; computi; w other, is a'ii subtracivi in, movemm automati pagitima 5* Eng what computing wheeis shiiting manna for 31d racks, a pan? of springs 0r c-peia 2;; said til G13 other is active bodily the oiher shifting means in me dia'ccfiion 01 according #30 which ai!" and means m', t0 determine the of mid springs.

44. The combing put-hug wheels, a i'ng said cnmputin of springs "for sm mine {m drive a;

springs acting; by one or tnsrm av neutyal pasitien where such a position efiects no shif said racks;

cmnbinatien with a sar 0f :1 891188 sf me r. sf 0021 5i; p! "meals, of a series 0f ra-ci v far remiing said wmputing wheels, shifting mfims for ad? ting racks with res com mting wheels ta determine J l V min; wheels by said raciug i1] arranged to opera Q!) eii hef a center of said shifting means ernaaiveiy efi'ective $0 0 1mm "means and thus 3 to (i: m'zn'lse (the. extent of mmeri'zeni ih of mans 1'01 movmg uid 122' said cn w barf; $0 drive mul n jun m ihe w? i muse, them in mm 1 during the driving movement of said. Mammal! n. or sub? (a: .wuordz'ng to the charactm of com- Firivu:

'iion lwing ({lkllPi on by said totalizer.

1 u 00:11pm {3 zrmchina, the combim! (25:. ith m wafer 0r aithm adding or i at a shah. prwided with a set d (la-Ming zniambers for minus; a secend set; of mg'ml driving members on Said ogmositely with respect to :mswi 55% and inczmed in the same Th 1 1d means far driving act um g mmrvr ca STICKNEY.

Vii-11 la. 1 A: mgr 0B1 immxz L. Purim.

mm. 131;; wheels and carry 

